import sys
import os
import logging
import re
import json
from typing import Dict, List, Any, Optional, Tuple

# 添加项目根路径到 sys.path
sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)), '..', '..'))

# 导入 MySQLUtil
from shared.utils.MySQLUtil import MySQLUtil

# 设置日志
logger = logging.getLogger(__name__)

def get_指定学历的前十基础能力(
    project_id: int,
    questionnaire_ids: List[int],
    product_code: Optional[str] = None,
    project_code: Optional[str] = None,
    region_code: Optional[str] = None,
    education: Optional[str] = None,
    top_n: int = 10
) -> Dict[str, Any]:
    """
    指定学历的前十基础能力 - 指标计算函数
    
    ## 指标说明
    统计指定学历的学生在问卷中对基础能力多选题各选项的选择频次，按降序排序后返回前N项。
    指标对应的题目为多选题，问题编码为T00000446，调研对象为GRADUATE_SHORT。
    
    ## Args
        project_id (int): 项目ID，用于查询项目配置信息
        questionnaire_ids (List[int]): 问卷ID集合，用于确定数据范围
        product_code (Optional[str]): 产品编码，用于路由到特定计算逻辑
        project_code (Optional[str]): 项目编码，用于路由到特定计算逻辑
        region_code (Optional[str]): 区域编码，用于路由到特定计算逻辑
        education (Optional[str]): 学历筛选条件，可选值为：本科毕业生，专科毕业生，硕士研究生，博士研究生
        top_n (int): 返回前N项结果，默认为10
    
    ## 示例
    ### 输入
    ```json
    {
        "project_id": 5895,
        "questionnaire_ids": [11158, 11159],
        "education": "博士研究生"
    }
    ```
    
    ### 输出
    ```json
    {
        "success": true,
        "message": "ok",
        "code": 0,
        "result": [
            {
                "wdKeyNameList": [],
                "calcVals": [
                    {
                        "val": [
                            {
                                "key": "default",
                                "val": "记忆能力、阅读理解、数学运算、逻辑思维、表达能力、情绪调节、外向主动、勇于探索、领导意识和严谨负责"
                            }
                        ]
                    }
                ]
            }
        ]
    }
    ```
    """
    logger.info(f"开始计算指标: 指定学历的前十基础能力, 项目ID: {project_id}")
    
    try:
        db = MySQLUtil()  

        # 1. 查询项目配置信息
        project_sql = """
        SELECT client_code, item_year, dy_target_items, split_tb_paper 
        FROM client_item 
        WHERE id = %s
        """
        project_info = db.fetchone(project_sql, (project_id,))
        if not project_info:
            raise ValueError(f"未找到项目ID={project_id}的配置信息")

        client_code = project_info['client_code']
        item_year = project_info['item_year']
        split_tb_paper = project_info['split_tb_paper']
        
        logger.info(f"项目配置: client_code={client_code}, item_year={item_year}, split_tb_paper={split_tb_paper}")

        # 2. 计算 shard_tb_key
        shard_tb_key = re.sub(r'^[A-Za-z]*0*', '', client_code)
        logger.info(f"计算得到 shard_tb_key: {shard_tb_key}")

        # 3. 查询问卷信息
        questionnaire_sql = f"""
        SELECT id, dy_target 
        FROM wt_template_customer 
        WHERE id IN ({','.join(['%s'] * len(questionnaire_ids))})
        """
        questionnaires = db.fetchall(questionnaire_sql, tuple(questionnaire_ids))
        if not questionnaires:
            raise ValueError(f"未找到问卷ID集合={questionnaire_ids}的配置信息")
        
        logger.info(f"查询到问卷信息: {questionnaires}")

        # 4. 过滤特定调研对象的问卷
        valid_questionnaire_ids = [q['id'] for q in questionnaires if q['dy_target'] == 'GRADUATE_SHORT']
        if not valid_questionnaire_ids:
            raise ValueError("未找到目标调研对象的问卷ID")
            
        logger.info(f"找到有效问卷ID: {valid_questionnaire_ids}")

        # 5. 查询问题信息
        question_sql = """
        SELECT id, wt_code, wt_obj 
        FROM wt_template_question_customer 
        WHERE cd_template_id = %s AND wt_code = %s AND is_del = 0
        """
        question_info = db.fetchone(question_sql, (valid_questionnaire_ids[0], 'T00000446'))
        if not question_info:
            raise ValueError("未找到指定问题编码的问题信息")
            
        logger.info(f"找到问题信息: {question_info['id']}")

        # 6. 解析问题选项
        wt_obj = json.loads(question_info['wt_obj'])
        options = {}
        for item in wt_obj['itemList']:
            options[item['key']] = item['val']
        
        if not options:
            raise ValueError("问题选项解析失败")

        # 7. 构建动态表名
        answer_table = f"re_dy_paper_answer_{split_tb_paper}"
        student_table = f"dim_client_target_baseinfo_student_{item_year}"

        # 8. 构建SQL查询
        select_fields = []
        for key in options.keys():
            select_fields.append(f"sum(c{key}) as '{options[key]}'")
        
        select_sql = f"""
        SELECT {','.join(select_fields)}
        FROM {answer_table} t1
        JOIN {student_table} s ON t1.target_no = s.target_no
        WHERE cd_template_id = %s
        AND wid = %s
        AND ans_true = 1
        AND s.shard_tb_key = %s
        AND s.item_year = %s
        """
        
        # 添加学历筛选条件
        params = [valid_questionnaire_ids[0], question_info['id'], shard_tb_key, item_year]
        if education:
            select_sql += " AND s.education = %s"
            params.append(education)
        
        logger.info(f"执行SQL: {select_sql} with params: {params}")
        result = db.fetchone(select_sql, tuple(params))
        if not result:
            raise ValueError("未找到有效的答案数据")

        # 9. 处理结果并排序
        sorted_results = sorted(
            [(k, v) for k, v in result.items() if k in options.values()],
            key=lambda x: x[1],
            reverse=True
        )[:top_n]
        
        # 10. 构建返回数据
        result_names = [item[0] for item in sorted_results]
        result_str = "、".join(result_names)
        
        return {
            "success": True,
            "message": "ok",
            "code": 0,
            "result": [{
                "wdKeyNameList": [],
                "calcVals": [{
                    "val": [{
                        "key": "default",
                        "val": result_str
                    }]
                }]
            }]
        }

    except Exception as e:
        logger.error(f"计算指标 '指定学历的前十基础能力' 时发生错误: {str(e)}", exc_info=True)
        return {
            "success": False,
            "message": f"数据获取失败: 指定学历的前十基础能力",
            "code": 500,
            "error": str(e)
        }